Luke 9:7

(Hom. 48. in Matt.) It was not till a long time had passed that Herod took notice of the things that were done by Jesus, (to show you the pride of a tyrant,) for he did not acknowledge them at first, as it is said, Now Herod heard, &c. For sinners fear both when they know, and when they are ignorant; they are afraid of shadows, are suspicious about every thing, and are alarmed at the slightest noise. Such in truth is sin; when no one blames or finds fault, it betrays a man, when no one accuses it condemns, and makes the offender timid and backward. But the cause of fear is stated afterwards, in the words, Because that it was said of some.

(de Con. Ev. l. 2. c. 45.) Now Luke, though he keeps the same order in his narrative with Mark, docs not oblige us to believe that the course of events was the same. In these words too, Mark testifies only to the fact that others (not Herod) said that John had risen from the dead, but since Luke has mentioned Herod's perplexity, we must suppose either that after that perplexity, he confirmed in his own mind what was said by others, since he says to his servants, (as Matthew relates,) This is John the Baptist, he is risen from the dead, or these words of Matthew must have been uttered so as to signify that he was still doubting.

Herod was the son of Herod the Great who slew the children, who was king, but this Herod was tetrarch. He inquired about Christ, who He was. Hence it follows, And he was perplexed. For the Jews expected a resurrection of the dead to a fleshly life, eating and drinking, but those that rise again will not be concerned with the deeds of the flesh.